CVE catalog
CVE-2026-48618
A flaw in Node.js TLS hostname handling can cause Node.js unicode dot separator handling can lead to tls wildcard-depth authentication bypass due to resolver and verifier hostname normalization mismat
- Severity
- High · CVSS 7.7
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 3.14% · Oct 25, 2026
A flaw in Node.js TLS hostname handling can cause Node.js unicode dot separator handling can lead to tls wildcard-depth authentication bypass due to resolver and verifier hostname normalization mismat. This can lead to confidentiality impact or bypass of the intended security boundary under affected configurations. This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | nodejs | sid | 24.22.1+dfsg+~cs24.19.2-1 | fixed |
| Debian | nodejs | forky | 24.21.0+dfsg+~cs24.13.4-1 | fixed |
| Debian | nodejs | trixie | 20.19.2+dfsg-1+deb13u2 | vulnerable |
| Debian | nodejs | trixie-security | 20.19.2+dfsg-1+deb13u3 | fixed |
| Debian | nodejs | bookworm | 18.20.4+dfsg-1~deb12u2 | vulnerable |
| Debian | nodejs | bookworm-security | 18.20.4+dfsg-1~deb12u3 | fixed |
| Cpe | nodejs | Not reported | Not reported | vulnerable |
| Cpe | node.js | Not reported | Not reported | unknown |
| Alpine | nodejs | 3.21 | 22.23.0-r0 | fixed |
| Alpine | nodejs | 3.22 | 22.23.0-r0 | fixed |
| Alpine | nodejs | 3.23 | 24.17.0-r0 | fixed |
| Alpine | nodejs | 3.24 | 24.17.0-r0 | fixed |
| Cpe | node.js | Not reported | Not reported | unknown |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | nodejs | source | sid | 24.17.0+dfsg+~cs24.13.2-1 | not yet assigned | Not reported | Not reported |
| Debian | nodejs | source | forky | 24.17.0+dfsg+~cs24.13.2-1 | not yet assigned | Not reported | Not reported |
| Debian | nodejs | source | trixie | 20.19.2+dfsg-1+deb13u3 | not yet assigned | Not reported | Not reported |
| Debian | nodejs | source | bookworm | 18.20.4+dfsg-1~deb12u3 | not yet assigned | Not reported | Not reported |
| Alpine | nodejs | apk | 3.21 | 22.23.0-r0 | Not reported | ALPINE-CVE-2026-48618 | Not reported |
| Alpine | nodejs | apk | 3.22 | 22.23.0-r0 | Not reported | ALPINE-CVE-2026-48618 | Not reported |
| Alpine | nodejs | apk | 3.23 | 24.17.0-r0 | Not reported | ALPINE-CVE-2026-48618 | Not reported |
| Alpine | nodejs | apk | 3.24 | 24.17.0-r0 | Not reported | ALPINE-CVE-2026-48618 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libnode108]Affected
Source package: [nodejs]
Details (4)
18.20.4+dfsg-1~deb12u2· amd64 · bookwormAffected · Fixed:
18.20.4+dfsg-1~deb12u3nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
18.20.4+dfsg-1~deb12u2· arm64 · bookwormAffected · Fixed:
18.20.4+dfsg-1~deb12u3nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
18.20.4+dfsg-1~deb12u2· amd64 · bookworm-securityAffected · Fixed:
18.20.4+dfsg-1~deb12u3nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
18.20.4+dfsg-1~deb12u2· arm64 · bookworm-securityAffected · Fixed:
18.20.4+dfsg-1~deb12u3nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
- [libnode-dev]Affected
Source package: [nodejs]
Details (4)
18.20.4+dfsg-1~deb12u2· amd64 · bookwormAffected · Fixed:
18.20.4+dfsg-1~deb12u3nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
18.20.4+dfsg-1~deb12u2· arm64 · bookwormAffected · Fixed:
18.20.4+dfsg-1~deb12u3nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
18.20.4+dfsg-1~deb12u2· amd64 · bookworm-securityAffected · Fixed:
18.20.4+dfsg-1~deb12u3nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
18.20.4+dfsg-1~deb12u2· arm64 · bookworm-securityAffected · Fixed:
18.20.4+dfsg-1~deb12u3nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
- [nodejs]Affected
Details (4)
18.20.4+dfsg-1~deb12u2· amd64 · bookwormAffected · Fixed:
18.20.4+dfsg-1~deb12u3nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
18.20.4+dfsg-1~deb12u2· arm64 · bookwormAffected · Fixed:
18.20.4+dfsg-1~deb12u3nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
18.20.4+dfsg-1~deb12u2· amd64 · bookworm-securityAffected · Fixed:
18.20.4+dfsg-1~deb12u3nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
18.20.4+dfsg-1~deb12u2· arm64 · bookworm-securityAffected · Fixed:
18.20.4+dfsg-1~deb12u3nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
- [nodejs-doc]Affected
Source package: [nodejs]
Details (4)
18.20.4+dfsg-1~deb12u2· all · bookwormAffected · Fixed:
18.20.4+dfsg-1~deb12u3nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
18.20.4+dfsg-1~deb12u2· all · bookwormAffected · Fixed:
18.20.4+dfsg-1~deb12u3nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
18.20.4+dfsg-1~deb12u2· all · bookworm-securityAffected · Fixed:
18.20.4+dfsg-1~deb12u3nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
18.20.4+dfsg-1~deb12u2· all · bookworm-securityAffected · Fixed:
18.20.4+dfsg-1~deb12u3nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
[Debian 13 (Trixie)]
- [libnode115]Affected
Source package: [nodejs]
Details (5)
20.19.2+dfsg-1+deb13u2· amd64 · trixieAffected · Fixed:
20.19.2+dfsg-1+deb13u3nvd · nodejs · debian · 13
20.19.2+dfsg-1+deb13u2· arm64 · trixieAffected · Fixed:
20.19.2+dfsg-1+deb13u3nvd · nodejs · debian · 13
20.19.2+dfsg-1+deb13u2· amd64 · trixie-security · Historical versionAffected · Fixed:
20.19.2+dfsg-1+deb13u3nvd · nodejs · debian · 13
20.19.2+dfsg-1+deb13u2· arm64 · trixie-securityAffected · Fixed:
20.19.2+dfsg-1+deb13u3nvd · nodejs · debian · 13
20.19.2+dfsg-1+deb13u3· amd64 · trixie-securityFixed · Fixed:
20.19.2+dfsg-1+deb13u3nvd · nodejs · debian · 13
- [libnode-dev]Affected
Source package: [nodejs]
Details (5)
20.19.2+dfsg-1+deb13u2· amd64 · trixieAffected · Fixed:
20.19.2+dfsg-1+deb13u3nvd · nodejs · debian · 13
20.19.2+dfsg-1+deb13u2· arm64 · trixieAffected · Fixed:
20.19.2+dfsg-1+deb13u3nvd · nodejs · debian · 13
20.19.2+dfsg-1+deb13u2· amd64 · trixie-security · Historical versionAffected · Fixed:
20.19.2+dfsg-1+deb13u3nvd · nodejs · debian · 13
20.19.2+dfsg-1+deb13u2· arm64 · trixie-securityAffected · Fixed:
20.19.2+dfsg-1+deb13u3nvd · nodejs · debian · 13
20.19.2+dfsg-1+deb13u3· amd64 · trixie-securityFixed · Fixed:
20.19.2+dfsg-1+deb13u3nvd · nodejs · debian · 13
- [nodejs]Affected
Details (5)
20.19.2+dfsg-1+deb13u2· amd64 · trixieAffected · Fixed:
20.19.2+dfsg-1+deb13u3nvd · nodejs · debian · 13
20.19.2+dfsg-1+deb13u2· arm64 · trixieAffected · Fixed:
20.19.2+dfsg-1+deb13u3nvd · nodejs · debian · 13
20.19.2+dfsg-1+deb13u2· amd64 · trixie-security · Historical versionAffected · Fixed:
20.19.2+dfsg-1+deb13u3nvd · nodejs · debian · 13
20.19.2+dfsg-1+deb13u2· arm64 · trixie-securityAffected · Fixed:
20.19.2+dfsg-1+deb13u3nvd · nodejs · debian · 13
20.19.2+dfsg-1+deb13u3· amd64 · trixie-securityFixed · Fixed:
20.19.2+dfsg-1+deb13u3nvd · nodejs · debian · 13
- [nodejs-doc]Affected
Source package: [nodejs]
Details (5)
20.19.2+dfsg-1+deb13u2· all · trixieAffected · Fixed:
20.19.2+dfsg-1+deb13u3nvd · nodejs · debian · 13
20.19.2+dfsg-1+deb13u2· all · trixieAffected · Fixed:
20.19.2+dfsg-1+deb13u3nvd · nodejs · debian · 13
20.19.2+dfsg-1+deb13u2· all · trixie-securityAffected · Fixed:
20.19.2+dfsg-1+deb13u3nvd · nodejs · debian · 13
20.19.2+dfsg-1+deb13u2· all · trixie-security · Historical versionAffected · Fixed:
20.19.2+dfsg-1+deb13u3nvd · nodejs · debian · 13
20.19.2+dfsg-1+deb13u3· all · trixie-securityFixed · Fixed:
20.19.2+dfsg-1+deb13u3nvd · nodejs · debian · 13
Observed:
References
- [https://access.redhat.com/errata/RHSA-2026:28727]
- [https://access.redhat.com/errata/RHSA-2026:29012]
- [https://access.redhat.com/errata/RHSA-2026:30172]
- [https://access.redhat.com/errata/RHSA-2026:35841]
- [https://access.redhat.com/errata/RHSA-2026:35842]
- [https://access.redhat.com/errata/RHSA-2026:35891]
- [https://access.redhat.com/errata/RHSA-2026:35892]
- [https://access.redhat.com/errata/RHSA-2026:39246]
- [https://access.redhat.com/errata/RHSA-2026:39868]
- [https://access.redhat.com/errata/RHSA-2026:41947]
- [https://access.redhat.com/errata/RHSA-2026:52399]
- [https://access.redhat.com/errata/RHSA-2026:7378]
- [https://access.redhat.com/errata/RHSA-2026:9455]
- [https://access.redhat.com/security/cve/CVE-2026-48618]
- [https://bugzilla.redhat.com/show_bug.cgi?id=2493337]
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_11110-1.json]
- [https://nodejs.org/en/blog/vulnerability/june-2026-security-releases]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-48618]
- [https://osv.dev/vulnerability/ALPINE-CVE-2026-48618]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-48618]
- [https://security-tracker.debian.org/tracker/CVE-2026-48618]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48618.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2919.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]